Sanitation system
 

Once used, the wastewater runs into the sewer system, which collects waste and rainwater and moves it by gravity or pumping to the wastewater treatment plants (WWTP).

At Hidrogea, we manage the sewer system for the eight towns where we provide our services, which stretches over 2,000 km, with more than 13,000 gutters for collecting rainwater.

Maintenance and conservation of the sewer system use state-of-the-art inspection technology, such as robot CCTV cameras, telescopic inspection poles and drones, ensuring efficiency in management of the system. In addition, every effort is made in the comprehensive management of rat and insect disinfestation and disinfection of the public sewer system.

The whole network system is mapped and traced by geographic information system (GIS) software, offering greater control for preventative and corrective network maintenance.

Discharge control
 

Discharge control involves a number of actions to identify and characterise discharges into the sewer system, in order to protect water resources and the environment and to ensure the smooth operation of wastewater treatment and sewer facilities, returning effluent to the natural environment so it can be used again once treated, along with the by-products obtained in the treatment process.

Discharges can cause degradation to pipelines and stop wastewater treatment plants from working properly. To prevent this, pollution from industry is continually controlled and monitored, ensuring discharges comply with legal requirements.

The Hidrogea mobile teams carry out controls on domestic and industrial discharges into the sewer system, based on two essential actions:

• Control of discharges into the sewer system, performed by the related bodies.
• Quality control of wastewater in sewer system collectors, with the aim of identifying the most polluted areas in the network.